Home / 8,638,913.92-11,921,630.33-4,718,672.54

Finding the Fourth Proportional to 8,638,913.92, 11,921,630.33 and 4,718,672.54

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Solution

The fourth proportional to 8,638,913.92, 11,921,630.33 and 4,718,672.54 is: 6,511,729.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,638,913.92 : 11,921,630.33 = 4,718,672.54 : x
  2. Step 2: Convert to fraction form
    8,638,913.92/11,921,630.33 = 4,718,672.54/x
  3. Step 3: Cross multiply
    8,638,913.92x = 11,921,630.33 × 4,718,672.54
  4. Step 4: Simplify right side
    8,638,913.92x = 56,254,269,670,202.14
  5. Step 5: Solve for x
    x = 56,254,269,670,202.14/8,638,913.92
  6. Step 6: Final answer
    x = 6,511,729.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.